Adjustable tension for top-roll saddles.



L. S. BACHE. ADJUSTABLE TENSION FOR TOP ROLL SADDLES.

APPLICATION FILED SEPT.23, 1914.

PatntedSept. 5,1916.

Fig. I5.

Fig- 4- o M a J S in Z WITNESSES ATTORNEY I with the stirrup in dotted outline.

" applied thereto.

LEIGH S. BAOI-IE, OF BOUNDBROOK, NEW JERSEY, ASSIGNOR TO BOUND BROOK OIL- LESS BEARING COMPANY, OF BOUNDBROOK, NEW JERSEY, A CORPORATION OF NEW JERSEY.

Specification of Letters Patent.

Patented Sept. 5, 1916.

Application filed September 23, 1914. Serial No. 863,115.

To all whom it may concern:

Be it known that I, LEIGH S. BAorIE, a citizen of the United States, and a resident of Boundbrook, in the county of Somerset and State of New Jersey, have invented certain new and useful Improvements in Adjustable Tension for Top-Roll Saddles, of which the following is a full, clear, and exact description, whereby any one skilled 1n the art may make and use the same.

The invention relates primarily to saddles for top rolls of a spinning frame and more particularly to an adjustable tension so that the saddle may be adjusted to varying conditions with reference to the drawing or top rolls of a spinning frame.

As is well known in the art, whenever the top rolls of a spinning frame are changed as to position to secure a proper draw upon materials of different characters, it becomes necessary to adjust the tension of thesaddle members which bear upon the top or loose rolls.

The invention herein described relates to a device for securing in a simple manner such an adjustment and providing a very delicate adjustment in conjunction with a main adjustment of the parts.

The object of the invention is to provide a simple method of adjusting the stirrup or weight-supporting member with refer ence to the saddle member.

A further object is to provide a ready quick adjustment combined with adelicate adjusting feature so that the position of the saddle may be varied to any desired degree to produce the exact and perfect tension desired upon the rolls.

Referring to the drawings: Figure 1 is a diagrammatic View of a set of top rolls, saddle and the adjusting device, the saddle and adjusting device being shown in side elevation. Fig. 2 is a perspective view of a saddle member having the adjusting device Fig. 3 is a perspective view of a modified form of adjusting device Fig. 4 is a plan view of the saddle member and adjusting device, of Fig. 3. Fig. 5 illustrates the manner of securing fine adjustments by rotating the plate.

In the accompanying drawings 1, 2 and 3 indicate the top rolls and 4, 5 and 6 indicate the lower rolls of a set of drawing rolls of a spinning frame. The upper rolls 1, 2 and 3 are pressed against the driven rolls 4, 5 and 6 to a greater or lesser degree of tension or pressure through a convenient arrangement of weights or springs connected with a stirrup member 7.

The stirrup member 7 rests upon the saddle 8 which, as illustrated herein is of the two-part type having a forward bearing member 9 and a separate rear member 10. The forward member rests upon the roll 1, while the rear member 10 rests upon the rolls 2 and 3.

As is well known in the art, it often becomes necessary in spinning slivers of mate rial of different character to change the position of the rolls or some of them at least so as to secure a proper draw upon the material. WVith any such change of position, it is necessary to modify the tension of the saddle so that just the proper degree of pressure will be exerted between the upper set of rolls 1, 2 and 3 and the cooperating driven rolls 4, 5 and 6. Many devices have been employed for securing an adjustment of the stirrup member and its appurtenant weight. The weight or tension springs commonly employed are not shown-in connection with the stirrup 7, as illustrated in the drawings.

To provide a most advantageous adjustment, the present invention contemplates securing a quick main adjustment and providing for a more delicate positioning of the stirrup 7 as the exigencies of any particular case may require.

As illustrated herein, the stirrup member 7 has a perforation 11 which encircles the saddle member 8 so that the stirrup 7 rests directly on the saddle. Naturally, due to the declination of the parts the stirrup will tend to work toward the forward rolls 1 and 4 and in order to position the stirrup at exactly the right point to produce a proper tension on all of the rolls, an adjustable plate 12 is employed. This plate, as illustrated in Figs. '1 and 2, is pivoted as at 13 and the pivot serves to bind the plate to the saddle member 8. The plate has an elongated slot 14 by which it may be adjusted longitudinally through the finger button 15. The plate is also provided with an enlarged and rounded end 16 which is turned upward from the face of the plate so that it serves as a fixed abutment for the stirrup 7. The plate may be adjusted longitudinally of the saddle member 8 through the slot 14 and pivot 13. This Will provide for the main adjustment and positioning of the saddle stirrup 7. It is also possible to set down the pivot screw 13 for any general adjustment made and thereupon sWing the plate through the button 15 until the circular end 16 has been moved to such a position that the abutting stirrup 7 is finally and definitely adjusted.

It Will be observed from the above described arrangement of parts that a quick general adjustment may be secured for the stirrup by positioning the plate longitudinally of the saddle and that a rotary movement of the adjusting plate 12 will thereupon provide a more delicate and final adjustment or positioning of the stirrup.

In the modified form of device illustrated in Figs. 3 and 4, the adjusting plate 20 is slotted as at 21 so that it may be moved longitudinally of the saddle member 22 and may be locked in position by the set screw 23. As a holding means for the stirrup, the end of the plate 20 is punched up, the central portion of the punching being turned back to provide a stop 24 with the outside edges turned up to provide stops 25, 26. The stops 25, 26 and the stop 21 provide a groove 27 Within Which the stirrup may rest. In this form of the device, the stirrup rests upon the metal plate and a movement of the plate carries the stirrup member With it.

WVhat I claim as my invention and desire to secure by Letters Patent is:

1. In combination With a top roll saddle, a

stirrup, an adjusting device for the stirrup and saddle embodying a stop plate, means for adjusting said stop plate longitudinally of the saddle for certain adjustments, said means including means for rotating said plate for certain other adjustments.

2. In combination With a top roll saddle, a stirrup, an adjusting device for the stirrup and saddle embodying a longitudinally adjustable plate having one end serving as an abutment for the stirrup, means for binding said plate to the saddle, said means permitting rotary adjustment of said plate to modify the adjustment of the stirrup.

3. In combination With a top roll saddle, a stirrup, an adjustable tension device for the stirrup and saddle embodying a plate having a stop or abutment at one end, means for adjusting said plate longitudinally of the saddle, said means embodying a locking screw, said screw serving as a pivot upon Which the plate may be rotated.

4. In combination With a top roll saddle, a stirrup, an adjustable tension device embodying a longitudinally and rotarily adjustable plate having one end upturned and serving as an abutment, said end being curved to provide variable adjustments for a stirrup and means for locking said plate in any desired position of adjustment.

LEIGH S. BACHE.

Witnesses L. V. RoUssnAU, C. F. JENNINGS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

